export async function onRequestGet(context) {
  const token = context.env.INSTAGRAM_ACCESS_TOKEN;

  if (!token) {
    return new Response(
      JSON.stringify({ error: "Instagram token not configured" }),
      {
        status: 500,
        headers: { "Content-Type": "application/json" },
      }
    );
  }

  try {
    const profileUrl =
      "https://graph.instagram.com/me" +
      "?fields=id,username,profile_picture_url" +
      `&access_token=${encodeURIComponent(token)}`;

    const mediaFields = [
      "id",
      "caption",
      "media_type",
      "media_url",
      "thumbnail_url",
      "permalink",
      "timestamp",
    ].join(",");

    const mediaUrl =
      "https://graph.instagram.com/me/media" +
      `?fields=${encodeURIComponent(mediaFields)}` +
      "&limit=12" +
      `&access_token=${encodeURIComponent(token)}`;

    const [profileResponse, mediaResponse] = await Promise.all([
      fetch(profileUrl),
      fetch(mediaUrl),
    ]);

    const profile = await profileResponse.json();
    const media = await mediaResponse.json();

    if (!profileResponse.ok) {
      return new Response(
        JSON.stringify({
          error: "Instagram profile request failed",
          details: profile,
        }),
        {
          status: profileResponse.status,
          headers: { "Content-Type": "application/json" },
        }
      );
    }

    if (!mediaResponse.ok) {
      return new Response(
        JSON.stringify({
          error: "Instagram media request failed",
          details: media,
        }),
        {
          status: mediaResponse.status,
          headers: { "Content-Type": "application/json" },
        }
      );
    }

    return new Response(
      JSON.stringify({
        profile: {
          id: profile.id,
          username: profile.username,
          profile_picture_url: profile.profile_picture_url,
        },
        media: media.data || [],
      }),
      {
        status: 200,
        headers: {
          "Content-Type": "application/json",
          "Cache-Control": "public, max-age=300",
        },
      }
    );
  } catch (error) {
    return new Response(
      JSON.stringify({
        error: "Instagram request failed",
      }),
      {
        status: 500,
        headers: { "Content-Type": "application/json" },
      }
    );
  }
}